Mobility management using virtual multi-parent tree in infrastructure incorporated mobile ad hoc networks

Authors:
Trung-Dinh Han;Hoon Oh
Affiliations:
School of Computer Engineering and Information Technology, University of Ulsan, Ulsan, South Korea;School of Computer Engineering and Information Technology, University of Ulsan, Ulsan, South Korea
Venue:
APNOMS'09 Proceedings of the 12th Asia-Pacific network operations and management conference on Management enabling the future internet for changing business and new computing services
Year:
2009

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Abstract

Mobile nodes in the integrated network of infrastructure networks and mobile ad hoc networks need an efficient registration mechanism since they register with Internet gateway via wireless multiple hops. Tree-based mobility management is highly dependable in that mobile nodes register with Internet gateway along tree paths from itself up to a gateway without using flooding. In this paper, we introduce a new method using a virtual multi-parent tree in which a node maintains multiple parents whenever possible. A mobile node can still retain its upstream path to a gateway even though it loses connectivity to one of its parents. The new scheme is evaluated against the tree-based method and the other traditional methods - proactive, reactive, and hybrid by resorting to simulation. The result shows that the new method outperforms the other ones and also is very robust against the change of topology.